Problem Display
PID: 271600 (3n1Q1b/pb3n1r/1p1Bp3/2N3PR/R1Pk4/p5r1/K2P1N2/8 w - - 0 1)

Stevenson, Edward

The Problemist, 1956

3n1Q1b/pb3n1r/1p1Bp3/2N3PR/R1Pk4/p5r1/K2P1N2/8

#3

10 + 11


SOLUTION


  • SOUND
  • Sets
    • 1...Rg1
      • 2.Sb3#
    • 1...Rg2
      • 2.Sb3#
    • 1...Rb3
      • 2.Sxb3#
    • 1...Rg4
      • 2.Sb3#
    • 1...Rxg5
      • 2.Sb3#
    • 1...Rg7
      • 2.Rh4+
        • 2...Rg4
          • 3.Sb3#
        • 2...Be4
          • 3.Rxe4#
    • 1...Bf3
      • 2.Sb3#
    • 1...Se5
      • 2.Qf4+
        • 2...Be4
          • 3.Qxe4#
    • 1...Sxd6
      • 2.Qxd6+
        • 2...Bd5
          • 3.cxd5#
    • 1...Sh6
      • 2.Qf4+
        • 2...Be4
          • 3.Qxe4#
    • 1...Sc6
      • 2.Sxe6#
  • Tries
    • 1.Scd3?
      • threat
        • 2.Bc5+
          • 2...bxc5
            • 3.Qxc5#
      • 1...Rxg5
        • 2.Bxa3
          • threat
            • 3.Bb2#
          • 2...Rb5
            • 3.cxb5#
      • 1...Sxd6
        • 2.Qxd6+
          • 2...Bd5
            • 3.cxd5#
      • 1...Rxd3!
    • 1.Rh4+?
      • 1...Rg4
        • 2.Sb3#
      • 1...Be4
        • 2.Rxe4#
      • 1...Rxh4!
  • Keys
    • 1.Sd7!
      • threat
        • 2.Bc5+
          • 2...bxc5
            • 3.Qxc5#
      • 1...Rxg5
        • 2.Bxa3
          • threat
            • 3.Bb2#
          • 2...Rg3
            • 3.c5#
          • 2...Rb5
            • 3.cxb5#
      • 1...Sxd6
        • 2.Qxd6+
          • 2...Bd5
            • 3.cxd5#

FEATURES


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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).